ILFORD ILFOTEC DD is a replenishable developer for all consumer black and white films. It has been specifically designed to be used in applications where large quantities of film are processed such as replenished dip and dunk (hanger) processing systems. With some adjustments to development times and operating temperature it can also be used in deep tanks and continuous long leader processors. For machine processing we recommend it is used in conjunction with ILFORD ILFOTEC DD STARTER solution.